Lamp and burner for lighting purposes.



PATBNTBD JAN. s, 1905.

. A. NRNBERG. LMP AND lURlqlERA POR LIGHTINGPURPSES.

APPLIOATION FILED JUNE 2, .1904.

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llNiTnn STATI-3s Patented January 3, 1905.

PATENT ALBERT NRNBERG, OE BERLIN, GERMANY.

SPECIFICATION forming part of Letters Patent No. 778,993, dated January 3, 1905.

Application filed June 2, 1904. Serial No. 210,915.

T0 all zzz/"c0711, if; may concern:

Be kit known that I, ALBERT NRNBERG, a subject of the German Emperor, residing in Berlin,in the Empire of Germany,have invented certain new and useful Improvements in or Relating to Lamps and Burners for Lighting Purposes, of which theffollowing is a specilication.

The present invention rates to an improved lamp or burner in which lighting-gas or some other combustible gas-such as vapor oi' petroleum or alcohol, generator-gas, and the like-is used in combination witha supply of oxygen.

The iigure shows a lamp according to this invention diagrammatically in vertical section, no Jfurther drawing being given in view of the simplicity oi' the invention.v

a is the supply-pipe for the combustible gas, and the supply-pipe for the oxygen. Lighting gas or vapor is admitted under any desired pressure through the pipe a to the annular chamber c, formed between an outer burnerpipe CZ and an inner burner-pipe e. Through the pipe oxygen is admitted into the inner pipe c by means of a nozzle f, which is connected to the oxygenpipe The inner oxygen-pipe c projects downward beyond the outer pipe Z and is closed at the bottom f/ and provided with lateral openings t. The arrangement oi' the nozzle f and of orifices L in the oxygen-pipe e imparts to the burner the characteristic features of a Bunsen burner. IV hen oxygen enters through the nozzle f into the pipe e, the -speed with which the oxygen escapes produces suction, so that atmospheric air is drawn through the openings It, said air mixing in the pipe e with the oxygen, the mixture meeting at the top ofthe burner at the combustible gas, a blue iiame l being formed which renders the mantle Z, suspended over the burner, strongly incandescent.

The mantle is suspended Jfrom a holder consisting of a wire handle m and a wire bracket n, provided with a central eye or bent part o, from which the mantle is suspended. This mantle-holder is placed in recesses p in a ring q, adjustably mounted on the parallel supplypipes t and 7) by means of perforated lugs r, provided with set-screws s, so that the ring g, and therefore the mantle-holder and the mantle, can be fixed at any desired level above the burner.

The pipes a and Z), arranged symmetrically on both ends of the burner, are brought together above the burner at t and join at any desired point their main supply-pipes. The burner and the tubes connected to it are surrounded by a globe u, which can be moved up or down by means of suspending chains or cords e. The chains pass over rollers 'w of a roller-carrier m and are secured to a central balance-weight y. As may be seen from the drawing, the two pipes a and b pass centrally through the roller-carrier w and the balanceweight y. The roller-carrier is secured to these pipes, while the balance-Weight freely slides on them up and down, and thus does not present any obstacle to the movement of the globe, so that the burner can be very easily manipulated.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. A lamp comprising an inner burner-tube, a concentric outer burner-tube, an oxygen-inlet nozzle to the inner burner-tube, said tube being' provided with air-inlets below said nozzle and a combustible-gas inlet communicating with the outer burner-tube.

2. A lamp comprising-an inner burner-tube, a concentric outer burner-tube, an oxygen-inlet nozzle to the inner burner-tube, said tube being provided with air-inlets below said nozzle, va combustible-gas inlet communicating with the outer burner-tube and parallel vertical oxygen and combustible-gas supply pipes and inwardly-bent upper portions thereof.

3. A lamp comprising an inner burner, a concentric burner-tube, anoxygen-inlet nozzle to the inner tube, said inner burner-tube being provided with air-inlets, and a combustiblegas inlet communicating with the outer burner-tube.

4. A lamp comprising an inner burner member, an outer burner member, an oxygen- In testimony whereof I affix my signature in inlet nozzle to one member, one of said mempresence of two Witnesses. bers being provided with air-inlets, a eornbnstilole-gas inlet Communicating with the 5 outer member, and parallel vertical oxygen Witnesses: and combustible-gas supply pipes and in- WOLDEMAR HAUPT, Wardly-bent upper portions thereof. l HENRY HASPER.

ALBERT NRNBERG; 

